Adjustable stool, chair, and the like.



I. E. LOOS.

ADJUSTABLE STOOL, CHAIR, AND THE LIKE.

APPLIGATION FILED JAN. 23, 1911.

1,001,41 '7. Patented Aug. 22, 1911.

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IBVEN E. L008, OF CAMBRIDGE SPRINGS, PENNSYLVANIA..

ADJUSTABLE STOOL, CHAIR,, AND THE LIKE.

Specification of Letters Patent. Patented Aug. 22, 19I1.

Application filed January 23, 1911. Serial No. 804,167.

To all whom it may concern:

Be it known that I, IRVEN E. Loos, a citizen of the United States,residing at Cambridge Springs, in the county of Crawford and State ofPennsylvania, have invented certain new and useful Improvements inAdjustable Stools, Chairs, and the Like; and I do declare the followingto be a full, clear, and exact. description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to, improvements in adjustable stools, benches,chairs and the like for pianos, organs and all other purposes.

Une object of the invention is to provide a stool or chair of thischaracter having an improved construction and arrangement of fasteningmechanism whereby the seat may be quickly and easily adjusted to andsecured at the desired elevation.

Another objectis to provide an adjustable stool, chair or bench whichwill be simple strong durable and inexpensive in construction, eflicientand reliable in operation and in which the looking or fasteningmechanism for the seat is in an out of the way position but withinconvenient reach for operation.

socket with which the stem of the seat is engaged; Fig. 3 is a plan viewof the looking or fastening plate for holding the seat in its adjustedposition.

Referring more particularly to the drawin s, 1 denotes the edestal ofthe stool, said pedestal comprising a fiat top piece 2 to which aresecured supporting legs 3 said legs being suitably braced as shown. Tothe to piece is also secured a depending centraliy disposed post 4havlng formed therein a centrally disposed socket 5. The upper end ofthe socket communicates with a centrally disposed passage 6 formed inthe top of the pedestal. The socket 5 1n the post 4 is increased in sizeat its upper portion to form shoulders 7 and 8.

Engaged with the passage 6 in the top piece 2 and with the socket 5 inthe postst is a metal socket or bushing 9. On the upper end of thebushing 9 is formed an annular flange 10 which engages the upper surfaceof the top 2. The lower portion of the bushing is reduced on its outerside thus forming a shoulder 11. When the bushing is engaged with thesocket 5. the shoulder 11 will engage the shoulder 7 in the socket andthe inner end of the bushing will ongage the shoulder 8. When thusarranged the surface of the bore in the bushing will be flush or in linewith the surface of the lower portion of the socket in the post. In oneside of the thicker upper portion of the socket is formed a transverseassage or slot 12 the purpose of which Wlll be hereinafter described.

Arranged in the socket 5 and lower ortion of the bushing is a coiledseat pro ecting spring 13. In the bushing and engaging the spring 13 isa seat supporting stem 14 having on its upper end a tenon 15 which isengaged with the seat 16 and thus securely fastens the seat to the stem.In the stem is formed a series of parallel, annular grooves or recesses17 with which is adapted to be engaged a seat locking or fasteningdevice whereby the seat is held in its adjusted positions.

The seat locking device comprises a Hat bolt 18 which is slidablyengaged with a casin 19 secured to the underside of the top plece 2. Thebolt 1.8 is provided with a bifurcated inner end 20 which Works througha slot 21 formed in the upper portion of the pedestal and through theslot 12 in the bushing 9 and is adapted to be engaged with the groovesor recesses 17 in the stem 14 of the seat whereby the latter is fastenedin its adjusted positions. The bolt 18 also has formed therein a slot 22in which is arranged a coiled spring 23 one end of which is engaged witha stud 24 in the inner end of the slot 22 and the outer end of which isengaged with a lug 25 in the casing 19 whereby the pressure of thespring is exerted to force the bolt inwardly and to hold the same inengagement with the recesses or grooves in the stem of the seat. On theouter end of the bolt is formed a retracting lug or finger 26 wherebythe bolt may be readily retracted to permit the seat to be raised orlowered.

When it is desired to adjust the seat the bolt is retracted and thespring 13 permitted, to raise, the seat, or pressure is applied to lowerthe seat to the desired position whereupon the bolt is released and thespring thereof permitted to project the same into engagement with one ofthe grooves or recesses 17 in the stem of the seat thereby, securelyholding the seat in its adjustedposition. i

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Having thus described my invention what ll claim is An adjustable stoolcomprising a pedestal with a post depending therefrom and having asocket therein, a detachable metal socket mounted part way in thefirst-mentioned socket and contacting with the upper face of thepedestal, a detachable coiled spring mounted in the socket of the postand that of the metal socket, a stem having a tenon on its upper endtachably connecte thereto, said stem having a series of annular groovesformed therein, said stem being mounted in the metal socket and havingits lower end contacting with the upper end of the spring, a guidecasing adjacent the upperend of the socket having a lug at its outerend, a pawl arranged within; the casing having a slot in which the lugis seated, a lug integral with the pawl at the end of the slot oppositeto said first-ment oned lug, a springoperating between the two lugs,whereby the pawl is normally held in engagement with one of the annulargrooves of the stem thereby locking the seat in adjusted position, andmeans at the outer end of the pawl for withdrawing it from engagementwith the stem.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

' IRVEN E. L008.

Witnesses:

J. A. Bowman, BLANCHE WHITE.

rovided with a seat de-

